axios 配置
axios.defaults.timeout = 15000; //超时时间
axios.defaults.retry = 3; //请求次数
axios.defaults.retryDelay = 1000; //请求间隙
// http response 拦截器
axios.interceptors.response.use(
response => {
//登录过期
if(response.data.errorCode == -1) {
store.commit('logout', this);
}
return response;
},
err => {
// 请求超时， 重新请求
var config = err.config;
// If config does not exist or the retry option is not set, reject
if(!config || !config.retry) return Promise.reject(err);
// Set the variable for keeping track of the retry count
config.__retryCount = config.__retryCount || 0;
// Check if we've maxed out the total number of retries
if(config.__retryCount >= config.retry) {
// Reject with the error
return Promise.reject(err);
}
// Increase the retry count
config.__retryCount += 1;
// Create new promise to handle exponential backoff
var backoff = new Promise(function(resolve) {
setTimeout(function() {
resolve();
}, config.retryDelay || 1);
});
// Return the promise in which recalls axios to retry the request
return backoff.then(function() {
return axios(config);
});
});
